Three-wheel riding cultivator



July 12, 1927.

K. B, RUBINS THREE-WHEEL RIDING CULTIVATOR- Filed April 2,9. 1925 2Sheets-Sheet 1 July 12, 1927.

K. B. RUBINS THREE-WHEEL RIDING CULTIVATOR Filed April 29. 1925 2Sheets-Sheet z QB R , Ms @K herein givenare in no'way limitative and.

that, wlnle still keeplng within the scope'of Patented JuIy IZ,

[Kay 3. scams, or iroRaA' OHIO.

THREE HEE RIDINGVCUILTIVATORQV I The purpose ofthe presentinvention-i toprovide a three-wheel riding. oultivatOf-designed to/operate Fbetween Vthe rows of corn or other crop tobe cultivated, theshovelca'rbeamsibeing. yieldingly supported to ride over and agitate the so land movable the invention, any desired modifications of I detail anddesired proportions may be made claimed.

' of Figure 1.

in the apparatus according to the 'circum-.

stances.

The invention comprises further features" and combinations of parts tobe hereinafter set forth, shown In the drawings Figure 1 is a view inside elevation of the improved three-wheel cultivator constructed 7 inaccordance with the invention.

Figure 2 is a planview of the same. Figure 3 is'a sectional View of thesection 18 and one of the shovels carried thereby,

Figure 4 is a sectional view on line 4 4:

Figure 5 is a sectional view through the part 6, axle 10, one of thebeams 12 and the 1 clips 23, which connect the beam to the axle;R'e'ferringto the drawings, 1 designates} the frame of the: cultivatorwhich is designed to operate between the rows of cornor other 'cropltobe cultivated. The forward portion of the frame has .a cylindricalbearing 2 which receives an upstanding pin or shank 8 of the. forwardframe 4. This forward I frame f straddles'the front'supporting Wheel 5.The-forward frame consists of the gU- shaped upright portion 6 andtheforward V-shaped portion 7, the latter extending at right angles to theformer, there being braces 8 bolted at 9 to the upright and forwardlyextending portions to reinforce the struc-' ture. I Y

in the drawings and "being carriedby them.

are relatively close together, the neXtset of suitable zaxl i 10- zpags, dfi ML aoent" ends of the "vertical and forwardly ex,-

tending portions of the frontframejs'a-id,

axle extends asubstantial distance "from the the shovel carrying beams12.

acent ends ofl-s'aid p'or tion's having babbitt lined. bearings 11 fortl1fl fl to permit; the

axle to zfreely *riotateyit being possible for 1 the jfr'ont'wvh'eel 5f-tomotate on or with theaxle, preferably in the latter manner Theopposite sides of the adjacent ends of the forward and'vertrcal portionsof the front frame to make provis on for the "support of,

It will be noted that the fo1\va1d',part :of', i

the front brace and the forward portion of v the frontframe are. closelypositioned, and

carried thereby in any suitable manner is *a draft clevis- 15 to which adraft rig (not shown) may be connected. Theudraft rig may haveadjust-able connections to the clevis to accommodate thejrig to thecultivator and v1ce versa. clevis is connectejdito the brace ofthe frontA rod 16 connects where the frame while the other end of .the ro-d ,is

passedup toward and terminates, ini an eye 1'! to receive the upperextremity of the pivot pin between the front frame andthe main ment of:the parts. P The shovel carrying beams-12 each cornprises two sections.18 audit), the latter section being pivotally mountedupon the ex?tended parts of the front axle betweenjthe,

adjacent ends of the forward and upright portions of the front frameandthe e-nds'j'o'f the brace. -The sections of these beams are pivotallyunited at'20 an'dthe sections 18 are of cross-secti'onally ai'igularform "and are frame, thereby permitting freedom of move- I'disposeldiin. divergingpositions, shovels l8.v

sliovels'furtherapart, and th'e'last pairqof The forward'shovelsflshovelsthereof maybepositioned a greater; I

' distance apart than the formerly mentioned shovels. R1 sing from whichthe sections 18 may beflmovedpivotally. Fastened to the pivots 20 arecertain I of the endsof sPringsQwhich are,,,in turn,

connected at 25 to the braces8. It is obvious and secured at 2l-to. thesections 18 of said beams are handles 22, by.

.105 that the beams are yieldingly supported and when raised, orlowered,,the tension of: the

vjspringsassists-their action, that is,iin' being raised,hencefacilitating in the cultivation of the crops due to agitating the soilbetween the rows. I v V At therearend the main frame is provided with adepending yoke frame 28 sup porting the rear axle 29 which carries therear wheels 32, shanks 35 extending rearwardly from the axle 29 andcarrying the plows 36. V I p An operating seat 88 is pos tioned on themain frame 1 to place the operator 1n convenient positionforvgraspingthe handles 22.

V V The invention having beenset forth, what is claimed is:

A cultivator comprising main andforward frames of which the latter ispivotally connected with the former a supporting 1 wheel rotatablymounted in the forward with said axle for swinging movement in avertical plane and the rear section pivotally connected to the forwardsection for swinging movement in a horizontal plane, eye bolts Iconstituting sald PlVOtLl connections between the beam sections springstensioned between the forward frame and the eyes of the eye bolts andhandle members carried by therear sections of theshoVel-carrying Ibeams. v

ture. v VKAY B. RUBINs In testimony whereof he aiii'xes hissigna-

